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Codeforces Round 940 (Div. 2) and CodeCraft-23
43:47:11
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Difficulty:
—
implementation
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Problems
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Status
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Custom test
Problems
#
Name
282A
Bit++
implementation
800
x234112
158A
Next Round
*special problem
,
implementation
800
x230985
263A
Beautiful Matrix
implementation
800
x222936
112A
Petya and Strings
implementation
,
strings
800
x207643
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x196747
281A
Word Capitalization
implementation
,
strings
800
x194669
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x191660
791A
Bear and Big Brother
implementation
800
x177299
266A
Stones on the Table
implementation
800
x176713
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x166271
59A
Word
implementation
,
strings
800
x160720
977A
Wrong Subtraction
implementation
800
x153749
110A
Nearly Lucky Number
implementation
800
x141500
734A
Anton and Danik
implementation
,
strings
800
x138867
41A
Translation
implementation
,
strings
800
x133854
116A
Tram
implementation
800
x131239
677A
Vanya and Fence
implementation
800
x129513
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126037
1030A
In Search of an Easy Problem
implementation
800
x118892
467A
George and Accommodation
implementation
800
x113015
344A
Magnets
implementation
800
x110891
486A
Calculating Function
implementation
,
math
800
x108588
136A
Presents
implementation
800
x108377
200B
Drinks
implementation
,
math
800
x107014
61A
Ultra-Fast Mathematician
implementation
800
x102971
228A
Is your horseshoe on the other hoof?
implementation
800
x101225
705A
Hulk
implementation
800
x98771
469A
I Wanna Be the Guy
greedy
,
implementation
800
x90717
520A
Pangram
implementation
,
strings
800
x89003
144A
Arrival of the General
implementation
800
x88420
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86641
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83352
785A
Anton and Polyhedrons
implementation
,
strings
800
x81573
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77442
510A
Fox And Snake
implementation
800
x76069
427A
Police Recruits
implementation
800
x71895
1352A
Sum of Round Numbers
implementation
,
math
800
x71222
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70343
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70129
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x66724
581A
Vasya the Hipster
implementation
,
math
800
x66721
151A
Soft Drinking
implementation
,
math
800
x65197
1742A
Sum
implementation
800
x63810
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x61797
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x59678
1512A
Spy Detected!
brute force
,
implementation
800
x59446
1692A
Marathon
implementation
800
x59082
32B
Borze
expression parsing
,
implementation
800
x58250
1676A
Lucky?
implementation
800
x57394
758A
Holiday Of Equality
implementation
,
math
800
x56878
1669A
Division?
implementation
800
x56410
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56338
1560A
Dislike of Threes
implementation
800
x55497
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55096
1807A
Plus or Minus
implementation
800
x54999
1367A
Short Substrings
implementation
,
strings
800
x54567
1791A
Codeforces Checking
implementation
,
strings
800
x54241
703A
Mishka and Game
implementation
800
x53268
1760A
Medium Number
implementation
,
sortings
800
x52984
431A
Black Square
implementation
800
x51031
1850A
To My Critics
implementation
,
sortings
800
x50319
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49362
1433A
Boring Apartments
implementation
,
math
800
x49010
1915A
Odd One Out
bitmasks
,
implementation
800
x48737
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48458
1873A
Short Sort
brute force
,
implementation
800
x48016
1619A
Square String?
implementation
,
strings
800
x47923
1722A
Spell Check
implementation
800
x46393
492A
Vanya and Cubes
implementation
800
x46390
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46218
1535A
Fair Playoff
brute force
,
implementation
800
x46025
707A
Brain's Photos
implementation
800
x45893
1426A
Floor Number
implementation
,
math
800
x45281
1829A
Love Story
implementation
,
strings
800
x45223
1703B
ICPC Balloons
data structures
,
implementation
800
x44851
1742B
Increasing
greedy
,
implementation
,
sortings
800
x43867
1772A
A+B?
implementation
800
x43615
1722B
Colourblindness
implementation
800
x42883
731A
Night at the Museum
implementation
,
strings
800
x42853
1791B
Following Directions
geometry
,
implementation
800
x41491
935A
Fafa and his Company
brute force
,
implementation
800
x41382
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41338
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41177
1926A
Vlad and the Best of Five
implementation
800
x40886
1950A
Stair, Peak, or Neither?
implementation
800
x40616
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40513
1850C
Word on the Paper
implementation
,
strings
800
x40467
233A
Perfect Permutation
implementation
,
math
800
x40229
1829B
Blank Space
implementation
800
x40210
1791C
Prepend and Append
implementation
,
two pointers
800
x39951
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x39941
1462A
Favorite Sequence
implementation
,
two pointers
800
x39736
1669B
Triple
implementation
,
sortings
800
x39461
1915B
Not Quite Latin Square
bitmasks
,
brute force
,
implementation
800
x37958
509A
Maximum in Table
brute force
,
implementation
800
x37151
1915C
Can I Square?
binary search
,
implementation
800
x36899
1097A
Gennady and a Card Game
brute force
,
implementation
800
x36842
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36552
1186A
Vus the Cossack and a Contest
implementation
800
x35986
1607A
Linear Keyboard
implementation
,
strings
800
x35880
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